Thallium, serum or plasma

Alphabetical Test listing

Thallium, serum or plasma-994

Test name:

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Useful for:

Evaluate exposure to thallium

Limitations:

Urine is the preferred specimen for assessment of thallium exposure

Specimen type:

Serum, metal free

Collection container:

Navy blue metal free vial/tube (no additive)

Volume:

2.0 mL

Minimum volume:

0.5 mL

Processing instructions:

Allow the specimen to clot
Spin
Carefully pour the serum into a Metal free transfer vial/tube, labelled as serum, within two hours of specimen collection.

Transport container:

Metal free transfer vial/tube

Alternate specimen type:

ETDA plasma, metal free

Alternate collection container:

Navy blue metal free vial/tube with EDTA

Alternate collection instructions:

Immediatley following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting

Alternate processing instructions:

Spin to separate the plasma from the cells
Carefully pour the plasma into a Metal free transfer vial/tube, labelled as EDTA plasma, within two hours of specimen collection

Alternate transport container:

Metal free transfer vial/tube

Transport and stability:

Ambient (preferred) - 3 days

Refrigerated - OK

Frozen - OK

Reason for rejection:

Use of non-metal-free collection or aliquot tubes

Performing lab:

MedTox Laboratories Inc (60297) via LabCorp (811687): R-NX

Days set up:

As needed; at least every other day

TAT:

7 days

Method:

Inductively coupled plasma/mass spectrometry (ICP/MS)

Reference ranges:

< 5.0 ng/mL

Results that require action (critical):

Thallium concentrations greater than 300 ng/ml are consistent with acute toxicity.

CPT codes:

83018

LOINC code:

Result 5744-8

Date created:

05/23/2019

Revised date:

04/12/2022

Review date:

06/06/2023